Fuel-valve controller for hydrocarbon-engines.



PATENTBD 0cm. 8, 1907.

W. P. ROTHE. FUEL VALVE CONTROLLER FOR HYDROGARBON ENGI NBS.

.llll I l APPLIOATION FILED JAN. 12, 1908.

In- W To all whom it mag concern:

"ih s;

sis-" ew Be it knownhthat 1, WILLIAM FQRo'n-rn a citizen; of the United States, and a resident-of East St. Louis,

Illinois,- have "invented certain new, anduseful Irn'i provements in Fuel-Valve Controllers for Hydrocarb0n-EngiJ 1es,' of which the followinglis a specificationcontaining a full,-clear, and exact description, reference being had to the accompanying drawings, form inga part'hereoi.' i

.My'invention: relates to a :fuel valve controller for hydrocarbon engines, and theobject of my invention to provides. simple construction whereby tlie supply oi oil or gas to the carbureter of a hydrocarbon engine can be. very accurately regulated.

A further object of my invention is to construct a fuel valve controller that 'is particularly adapted for I the engines ofmotor vehicles, and which controller is within'easy reach-pi the operator of the vehicle, andto provide said controller with a graduated :dial so that the operator can tell exactly the degree to which the fuel valve is opened. I

'In some carburetors oi'the present construction, and whichare inuse upon motorvehicles, it is necessary to stop the vehicle in orderto adjust the valve that controls the supply of oil ,o'r gas to the carburetor. In other forms of carburetors the air inlet is increased or decreased by means of valves of various, kinds, operated by levers without indicators, and l propose to provide a construction wherein the operator of the engine, orcontroller of the vehicle has accurate control of the engine at any speed, thereby'decreasing the liability of accident through failure to properlyv control the engine while the vehicle is in motion.

' To the above purposes, my invention consists inceitain novel features of construction and arrangement of parts, which will be hereinafter more fully set forth,

' pointed, out in my claims, and illustrated in the ac-J companying drawings, which:

, Figure 1 is a vertical section taken'throug'h' center-of my improved controller, and showing the mrbureter in vertical section, and a portion of the motor vehicle to'which the controller is fixed; Fig.- 2

. is a plan view of the hand wheel used in connection withmy'improved controller, and showing the graduated scale whereby the, controller is regulated; Fig.3 is a perspective View of an angle frame such as is used in my improved controller.

" Referring by numerals to the accompanying drawingsz ldesignates the carbureter in which the oil or gas and-air is mixed prior to its passage into the engine cylinder.

2 designates the needle valve that controls theinlet of oil or gas into the 'carbureter; 3 the valve stem which is threaded in the upper portion of the carbureter 1, and extends upwardly through a packing nut Specification of Letters Patent sp uqasos filed January 12,1905. Serial No. 295,785.

l -and 5-vthe tubular connection that conveys the or gas' to thecarbureter. The upper end of the stem 3 passes throughan-angle frame 6, and fixed upon said stem within said frameisa beveled pinion? Journaledin the vertical portion ofthe frame 6 a horizontally arranged shaft 8, and fixed onthe end K WILLIAM F. Home, or'EAs'r-s'r. Louis. ILLINOIS.

, Patented oasis, 1907."; 4

thereof within the frame is a'pinion Qthat meshes with the pinion 7. Located at'a suitable point in the shaft 8 is a universal joint 10 of any suitable construction:

The-opposite end of the shafts passes through thevertical arm of an angle frame 11, similar to the angle frame 6, and fixedon the end of said shaft 8 within the frame '11 is a beveled pinion 12. .Tournaled in the horizontal member of the angle frame 11 is the lower end of a vertically arranged shaft 13, to which is fixed, within the frame 11, a beveled pinion 14 which meshes with the pinion 12. All of the pinions, 7, 9, 12, and 14, are of uniform size so that the shafts 8 and 13, and the valve stem 3 have the same rotation.

, Screw seated on the upper end of the frame 11 is the lower end of a tube 15 that extends upwardly, and is screw seated in the flange 16 that is fixed to the floor 17 of a motor vehicle. Screw seated in the upper portion oi-this flange 16 is the lower end of a tube 18, in the upper end of which is fixed a bushing 19; having a fiat top surfacefaround the edge of which is arranged a series of graduatedmarks 20.- The upper end of the shaft 13 is. journaled in the bushing 19, and on the upper end of said shaft is fixed a hand wheel 21 that carries a finger 22 which rides directly upon the top surface of the bushing 19. {In somei'instances, this hand wheel 21 may be replacedby a hand lever. r The operation of my improved controller will be readily understood, it only being necessary to manipulate the hand wheel 21 to-rotate the valve stem 3, which consequently seats or unseats-the needle valve 2; The

rotary motion of the shaft 13 is transmitted by the beveled pinions 12- and 14 to the horizontally arranged. shaft 8 and from thence to the valve stem 3 by means oithe beveled pinions 7 and 9. The operator moves the hand wheel 21 so thatthe finger 22 carried therebyis shiited around from one graduated mark 20 to another, inprd'er to properly open or close the valve opening from the fuel supply pipe 5 into the carbureter. The frames 6 and 11 being loosely mounted upon the ends of the shafts 8 and 13, and the valve stem 3, permit the shaft 8 to be extended to any point beneath the body of the, motor vehicle, and the universaltjoint 10 allows a slight variation in height of the frame 6 relative the frame 11, This universal joint also allows for the vertical motion of the valve stem 3 as it moves upwardly or downwardlyv in the upper portion of the carbureter 1.

The fuel oil or gas is, supplied through the tube 5, and passes from thence past the open needle valve 2 into the carburetor, and the degree towhich this needle valve is open determines the Quantity of oil or gas that is admitted to the carburetor to mix with the air. Thus, the operator by means of the hand wheel and the indicater can set the fuel valve to any position desired within the range of the threaded stem 3, and thus accurately gage the supply of explosive mixture that enters the engine cylinder, and which mixture may be varied even while the engine is in operation.

The carburetor has a fixed area. through which the air passes, and the fuel supply into the carburetor can be very accurately regulated by my improved controller.

.1. In a device ofgthe class described, the combination with :1 cnrhureter, of a valve for controlling the supply of hydrocarbon to the carbureter, the stem of which valve is screw threaded; a beveled pinion fixed on the-upper end of the valve stem, 11 horizontally arranged shaft, beveled pinions on each, end thereof one of which meshes with the pinion on the valve stem, a vertically arranged shaft, 2i beveiedpinion on the lower end thereof which meshes with the pinion on the opposite end of the horizontal shuit, angle frames loosely mounted on the ends of the shafts around the meshing beveled pinions; and uh operating handle lived on the upper end of the vertical shall: substantially as specified.

2, The combination with a ('nrlnirvlcr, having an inlet valve. lhu stchrol' which is screw threaded, of n beveled pinion llXLll on the upper eudbf the valve slem, a horlnonlallv d sposui shaft in the renier of which is'urrnngcd a universal joini", beveled pinions on each end of said shaft, one of which meshes with the pinion on the upper end oi? the valve stem, an angle frame loosely mounted on the upper end oi? lhe valve stem and the adjacent end of the shaft uround- .the meshing plnions, a vertically disposed tube, a plug iixed in the upper end thereof, a shaft passing through said tube and journaled for rotation in the plug, a pinion fixed on the lower end oi. said vertical shaft and meshing with the beveled pinion on one end of the horizontally disposed shaft, an angle 'irnihe loosely mounted on the ends of the shafts and surrounding the lust mentioned pair of beveled pinions, a handle fixed on the upper end of the veriical shaft, and on indicating linger carried thereby.

In testimony whereof, I have signed my name to this specification, ih presence of two subscribing witnesses.

WILLIAM F. RO'lIlE.

Witnesses M. I. Smrn, E. L. \VALLACE. 

